Paper receptable for liquids



E". w. LABOMBARDE.

PAPER RECEPTACLE FOR LIQUIDS.

APPLICATION FILED DEC.20, 1915.

.. Patented Jan; 11,1921.

2 SHEETS-SHEET 1.

Inveniur:

E wlabombarde E. W. LABOMBARDE.

PAPER RECEPTACLE [FOR LIQUIDS.

APPLICATION FILED DEC.20. 1915.

1,3 5,250, Patented Jan. 11,1921.

2 SHEETS-SHEET 2 Inve nio r E omqrde UNITED .sfrnrss PATENT OFFICE.

ELIE w. nanontnan m'or NASHUA, new HAMPSHIRE.

PAPER ancnrcrnntn non LIQUIDS.

Specification of Letters Patent. t t Jan, 11 1921,

Application fil ed December 20, 1915. Serial No. 67,758.

To all whom it may concern.

Be it known that 1,,EIJE W..LABOMBARDE, of Nashua, in the count ofHillsborough and State of New Hamps ire, have invented -such as oystersand pickles, and has particular reference to the manufacture of suchvessels from fiat blanks.

One of the objects of my invention'is'to provide liquid containerseconomically made from flat blanks so formed, folded and treated as tobe capable of retaining liquid, without leaking, for such length of timeas to render the containers and delivery of milk.

Another obj ect' is to rovide vessels of this character which may e laidon their sides without leaking. Y Y

Another object is to provide such vessels with clips or clasps which notonly hold; the tops closed but may be utilized as handles for carryingthe vessels.

Another object is to provide suchv vessels practical for the sale whichmay be filled with definite quantities of liquid without requiringprevious measur ing, and which will enable the customer to see at aglance, when he opens the top, if he is etting what he pays for.

0 these ends, the invention consists in the improvements which I shallnow proceed to describe and claim.

Of the accompanying drawings:

Figures 1 and 2 are plan views of one form of paper blank suitable formaking the liquid container or vessel, said figures illustratingopposite surfaces of the blank and being shaded to illustrate whatportions have been treated with water-proofing material, such asparafiin.

Fig. 3 is a perspectiveyiew of the blank folded up to container form,and the top partly open. Fig. 4 is a perspective View of the containeror vessel closed.

Fig. 5 represents a section on line 5-5 of Fi 4.

Fig. 6 represents a section at a right angle to Fig. 5.

Fig. 7 is a section on line 7-7 of Fig. 4. Fig. 8 is a detail viewillustrating a different folding of the top.

Fig. 9 is a plan view of a slightly different shape of blank.

Similar reference characters indicate similar parts or features in allof the views.

Referring first to Figs 1 and 2, the dotted lines indicate creasing tofacilitate the fold-j ing of the blank to the condition illustrated inFigs. 3, 4, 5 and 6. The said dottedlines divide the blank into portionsorsections 12, 13, 14, of which the member 13 forms the bottom and themembers 12 and 14 form two. of the sides when folded and stood up asindicated in Fig. 4. The wings 15,16,

17, 18,19 and 20, when the blank is folded .up, overlap, and are securedtogether by asuitable adhesive, the operation being by a suitablemachinewhich may be of the gen-' eralty e explained in my I 1,161,22 grantedNovember 23', 1915.

'will state here, however, that for the purposes of this presentvessel,.I prefer that the small wings 19, 20, shall be inside, as-

. shown in Figs. 5 and 6 instead of between.

the large side wings as in the boxes folded, by the machine of thatpatent.

U. S. Patent Extending from the sections Maud 12 are I flaps 21, 22respectively, which are to form members of the top closure of thevessel, one of said flaps, as the flap 22," having a narrow tucking flap23; and extending from the wings 15, 16 are flaps 24, 25, respectively,which also form members of the top closure. The upper ends of wings 17,18, are connected to flap 22, by triangular foldable sections 26, 27,which are creased-as'indicated by dotted lines in Figs. land 2, to

enable them to be folded as hereinafterdescribed. The wings 17, 18, havesmall holes; 28 near their junction with the sections 26, 27, for apurpose to be described.

. In carrying out .my invention, the paper is. coated with .a suitablewater-proofing material such as parafiin, preferably before it is foldedto form a vessel or container, although -some features of my inventionare e ually' as useful if the water-proofing is e ected after the blankis folded. Figs. 1 and 2 especially illustrate how the blank will bewater-proofed before. it is folded. The parafiin or equivalent isapplied to both surfaces of the blank,'but not to the entire area ofeither surface. That is, the portions which, when the blank is foldedup, are to overlap and be secured together by glue, are left uncoated.The shading in Figs. 1 and 2 is to indicate the water-proofedportionsand the un-shaded areas are those which are left un-coated. Glue willnot adhere to parallined paper, and therefore, in carrying out myinvention, I prefer to leave nil-paraffined those areas to which glueisto be applied in order to keep the vessel in the form shown in Figs. 4and 6 when the blank has been converted to that form. When the hesivelysecured tbgether. Thus it will be seen that two side walls of the vessel(12, 14)

r are each of a single thickness, with both surfaces and the creaselines fully coated, while the other two side walls of the vesselcomprise the overlapping wings 15,,16, 17, 18, 19 and 20 (seeFig. 6)which have uncoated areas glued together but also have coated areas thateffectually prevent the 'paper from being affected by contained liquid.By comparing Figs. 1 and 2, it will be seen that the water-proof coatingeffectuall protects all creased lines.

t is to be understood that in applying the water-proofing materialto theblank itis done in such manner as not to penetrate entirely through thepaper. If it did, the glue would not cause the overlapping portions toadhere. The said material is applied only as a coating, being allowed tocool and set before getting into the paper to any such ex tent as topresent any of the material atthose surfaces which must be leftun-treated to hold the glue. M

It 1s, of course, essential that if-the vessel" is to contain liquid forany length of time,

especially if liable to be laid on one side, it can be effectuallysealed by a closure. When the blank has been folded as described, it'will besubstantially as illustrated in Fig. 3., but the flaps 24, 25,will be standing substantially upright. After it is filled, the saidflaps are laid down to the plane of the top of'the side walls. Said apsare of such size and proportion that they meet (see Fig. 6) andpractically close the top of the vessel.

When the receptacle is converted from the condition shown in Fig. 3toward and to the condition shown in Fig. 6, the first closing movementof the flap 22 bows the sections 26, 27 outwardly until each is nearlydoubled. Then as the lip 23 is tucked in as described, the folding offlap 22 down fiat first completely doubles the sections 26, 27 and thendraws them first to upright position and then somewhat inward towardeach other. As the flap 21 has been, in the mean time, folded on top offlap 22, the said folded triangular sections will readily retainsomewhat the position indicated in Fig. 6, even Without the employmentof any clip to hold them there.

The reverse of this operation opens the vessel. The flap 21 aids inproperly folding .the triangular sections toward each other because itafurnishes two edgesover WhlCh are the outer-most ones of thedouble-thick walls, no leakage can occur through said holes. Tofacilitate the attachment, or re moval,'of the clip, and insure itsremaining in position, it is preferably bent at one or more intermediatepoints 30, to form a spring or springs whereby the clip is resllientlyextensible. The clip not only holds the triangular folds down to keepthe vessel sealed, but it may be used as a handle. It will now beunderstood that the blank as shown in Figs. 1, 2 and 9, comprises astrip of paper scored to rovide a bottom section 13, and two side-wa 1sections 12, 14, each of which has a pair of wings (19 and 20, or 15 and16, or 17 and 18) extending laterally therefrom. The Wings 15, 16, ofthe side wall section 14 have flaps 24, 25, which form members of thetop closure (see Figs. 3 and 6), the Wings 19, 20, reinforce the bottomand aid in preventin bottom leakage through the overlapped jo1nts, theflaps 21, 22, at the ends of the. strip, coact with the flaps 24, 25 inmaking a liquid-tight top closure, and the triangular sections 26, 27,which connect the wings 17 18, with the flap 22 will, when folded towardeach other across the several overlapped flaps 21, 22,

24, 25, retain those flaps in relative positions to effectually seal thetriple-thick top of the receptacle. As indicated in Fig. 8, thetriangular por-- tions may be double folded, and a clip 29 with hookedends, engaged therewith, the double folding providing a strongconnection for the hooked ends of the clip, which thus engages severalthicknesses of the pa er, but without permitting leakage.

en my improved receptacle or containers are to be used for the sale anddelivery of milk or other liquids that are to be furnished in measuredquantities it is desirable to rovide them with scale marks 01' capacityindicators for several reasons especially to enable accurate quantitiesof the liquid to be poured in without previous use of a separate--'-measuring vessel, and still avoid liability of so filling areceptacle as to result in bursting if the liquid freezes. Supposingthat the container is to hold a quart of milk, the blank will then amade of such size that when folded up as shown in Figs. 3 and 4, itscapacity will be somewhat greater than a quart so that it may contain aquart and still provide a space above the milk to avoid liability of thepaper being burst 0 en at any point if the contents should reeze. Theblank is providedwith a capacity'indicator which may consist of aprinted line a on se'ction 12-or section 14,

or on each of them, on such portion thereof that when the blank isfolded up, the line or lines will be just below the top of the be relieduponto measure the milk or other ders the paper sufficiently translucentso that the line or lines a show through and can be seen from the insidewhen the top liquid accurately. While the mark might be made by creasingthe pa er, I prefer to'print it and, of course, be ore paraffining theblank. Printing does not in theleast weaken the paper, and'a printedline is more readily seen than a creasedline. The lines are rintedonlyon those surfaces of the blanhs which areoutside when folded up. Ifprinted on theiinside, the vessel would be less sanitar the milk. heparafiining of the blank renof the vessel is open, thus enabling thedealer to fill the vessel with the required amount of milk, withoutprevious measuring in another vessel, and enabling him to determine howmuch is to be left at the top' toprevent bursting from freezing. It alsoenables the purchaser, when he opens the to contam liquid withoutleaking, said blank having portions adapted to be overlapped vessel, tocompare the level of the'milk with the scale mark or marks and know ifhe is getting the full unit of measure which. he

pays for. T e paraflining, it is to .be understood, does not render thepaper sufficiently translucent to enable the height-or level of thecontents to be seen fromthe outside;

hence the proper hei ht or level is ascertained by comp'aring t e levelof the liquld,

while the top of the vessel is'open, with thev indication or shadow ofthe mark transmitted through from the outside. The mark or marks areplaced on those portions of the blank which, when folded up, constitute.

sides or walls of single thickness, in order.

to be visible through as described. If placed on any of the portions 15,16, 17 or 18, they would not serve the purposes described unless in verystrong light, because those portions are overlapped and hence the 'wallsthere are of double thickness. Of course the mark a may have, adjacentto it, a suitable printed legend, such as 1 pint or 1 quart.

So far as concerns some features of my invention, I do not limit myselfto paraffinr as the ink might contaminate ing the blanks, leavingun-coated those porduction however is more expensivein time andmachlnery employed, than the one which I have hereinbefore described.

A particular advantage possessed b my improved vessel or liquidcontainer is t at it may be laid on one side-(especially if that sideformed by the wall 12 is underneath) with little or no liability ofleaking.- This enables the vessels whichare tapering in form, to be solaid or packed in a crate in alternating arrangement, that there will benowaste space between them. I do not limit myself to having the tuckmgflap 28 extend from section 22. It

may extend from section 21 as indicated in- F'lg. 9. Such formationhowever, necessi-r tates a different order of foldin down the members ofthe top closure. If t e vessel is formed from a' blank having the shapeshown in Fig. 9, the flap 21 must be folded onto flaps 24, 25,- beforethe flap 22 is folded down.

I also do not limit myself to so treating the blanks as to leave theun-coated areas as .large as indicated in Figs. 1 and 2. It is onlyessential that such areas shall be of a size to permit the use of anadhesive on sufficient space to cause the overlapping side members to beproperl secured together.

Having now descri ed my invention, I claim 1. A paper blank for making areceptacle and. adhesively secured. together when the blank is convertedto receptacle form, the blank being coated with water-proof mater1al,excepting one face of those portions which are to contact with eachother and creased lines to facilitate fol ing the blan to form a liquidreceptacle, said blank being coated wlth water-proof material, surfaceareas of the wings being left uncoated to enable those portions-to beadhesively se-.

cured together when overla ped, the surface areas opposite those whichare uncoat-y ed being coated with water proof mate-- rial, thewaterpro0f coating including all creased lines.

3.- A paper blank for making a receptacle to contain li uid withoutleaking, said blank having port ons adapted to be overlapped tion ofliquid-,isaid container com'prisinga' creased and folded blank havingtop flaps for closing it tightly and having a capacity slightly greaterthan a known unit of measure, the outer surface of the container hav ingan indicator located to denote that unit of measure, the materialof thecontainer being treated with water-proofing material and renderedtranslucent thereby'to enable the indicator to be seen from the inside,said indicator being near the top of the container but sufficientlybelow said top to provide a space between the closin means and theliquid at the level of the indicator to eliminate liability of burstingthe container due to freezing of the contents.

6. A device of the character described, comprising a paper receptacletreatedwith water-proofing material and rendered trans-- lucent thereby,and having overlapping portions forming walls of double thicknessleaving one'or more of the side walls of single thickness, the top ofthereceptacle having means for closing it tightly, a permanent capacityindicator bein borne by the outer surface of a wall of'sm le thick nessnear the top thereof,said indicator betacle is open.

7. A blank for a paper receptacle, coming visible from the inside whenthe recep-.

signature.

prising a strip of paper creased to provide a bottom section and twoside wall sections and two top-closing flaps, each having an area equalto the to of the receptacle, each of the side wall sections and thebottom section havin a pair of wings extending laterally theregrom, eachof the wings of one side wall sectionf having a top-closing flap equalto one halfof the to of the receptacle, and the wings-"of'the ot er sidewall section' being connected with one of the firstmentioned top-closingflaps by triangular sections adaptedto -be folded toward each otherfwhen the blank is made into a recep tacle-and the latter is closed, toretain the four overlapped flaps in three-layer relativela positionstos'eal the top of the receptac e.

comprising a single pieceof paper folded to present a bottom section,two side walls each of a single thickness, .two side walls each oftwo-overlying members adhesively connected, a three-layer complete topclosure of overlying members, and triangular sections folded toward eachother above said three-layer members. I x

9. A receptacleoflthe character described,

8. A receptacle of the character described,

comprising a single piece of; paper folded to present a'bottomsection,"'two side walls each of a single thickness, two side walls eachof two'overlying members adhesively' connected, the outer members of thelastmentioned walls having'perforations, the inner ends of which areclosed by the inner members of said walls, overlying top members toclose the receptacle, and a clip having bent ends to engage the shallowsockets formed by said perforations, said clip beingformed to bear uponand retain said top members in folded-positions.

In testimony whereof I have affixed my .ELIE W. LABOMBARDE.

